Pre-hung door retainer



FIG. 1 is a right side perspective view of a pre-hung door retainer showing our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof, the top being identical. 

The ornamental design for a pre-hung door retainer, as shown and described. 